内点半定规划法求解含机组组合动态最优潮流

考虑电力系统运行的经济性和安全性,建立了含机组组合的动态最优潮流问题的半定规划模型,并采用基于半定规划的内点法直接求解.所提算法采用修正策略处理模型中的离散变量,计算时不需要进行模型分解,收敛性好,能在多项式时间内完成.为提高计算效率,采用了半定规划块状矩阵运算的稀疏技术.通过对IEEE-118节点等4个测试系统24时...

SDP-based Method for Dynamic Optimal Power Flow with Unit Commitment

Considering the economy and security of the operation of power system,a semidefinte programming(SDP) model for dynamic optimal power flow(DOPF) problem with unit commitment(UC),named as DOPF-UC,is set up in this paper,which is directly solved by the interior-point method(IPM) on the base of the SDP.The proposed method is applied for the DOPF-UC problems due to its excellent convergence and the ability in handling the discrete variables by a modification strategy and no requirement of the model decomposition,which can be finished within polynomial time.In order to increase the calculation speed,the sparse technology of block matrix operation of SDP is adopted.Four different size test cases from 6 to 118 buses over 24 hours are used to simulate,and the result verifies the accuracy,effectiveness and superiority of the proposed method.Therefore,the research and application of the SDP-based method for DOPF-UC has a good prospect.